I've just purchased a GH5 PS2 wireless controller which came with a wireless receiver (not a dongle). I plug it into my laptop and the light on the receiver comes up, but if I plug it into the PS2 the light doesn't show and the guitar doesn't work.

I tested two other different USB things in the PS2 and they both worked fine (not PS2-related things), so why does my wireless receiver not work? What can I do to my PS2 to fix it?